Waterproofing Sleeve and Coupling Element for Wall Penetrations

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Solution Overview

Problem

Conventional waterproofing methods for walls with penetration members, such as those in bathrooms and kitchens, require excessive sealant and can damage the wall or tiles when maintenance is needed, as the sealant often prevents removal of components like tap spindles without damaging surrounding structures.

Innovation Solution

A system comprising a sleeve with a resilient collar to fit around the penetration member and a separate coupling element for sealing to the wall, allowing the sleeve to be adjusted and trimmed to be flush with the wall, reducing the need for extensive sealant and enabling maintenance without damaging the surrounding area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If a large wall opening is created to accommodate the penetration member, then the penetration member can be installed, but a large gap remains requiring excessive sealant

Engineering Contradiction:
Improvewall opening sizeVSAvoidsealant quantity
Core Design Contradiction:
Length of moving objectVSQuantity of substance

Solution Approach 1:

The waterproofing system is divided into multiple components: a sleeve that fits around the penetration member, a coupling element that seals to the wall, and sealant applied only at the interface between the coupling element and wall. This segmentation allows the wall opening to be sized precisely to the penetration member while minimizing the gap requiring sealant.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sleeve acts as an intermediary component between the penetration member and the coupling element, providing a precise fit around the penetration member and creating a controlled interface for sealing that reduces the amount of sealant needed.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If sealant is applied to fill the gap between wall and penetration member, then waterproofing is achieved, but the penetration member cannot be removed for maintenance without damaging the wall or tiles

Engineering Contradiction:
Improvewaterproofing effectivenessVSAvoidmaintenance accessibility
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The system separates the waterproofing function into distinct components: the sleeve that interfaces with the penetration member, the coupling element that seals to the wall, and the sealant applied only at the coupling element-wall interface. This allows the penetration member and sleeve to be removed together as a unit for maintenance while the coupling element remains sealed to the wall.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The penetration member is extracted from the direct sealing relationship with the wall by introducing the sleeve and coupling element as intermediate components. The sealant is applied only at the coupling element-wall interface, not at the penetration member-wall interface, allowing maintenance access while preserving waterproofing.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If the wall opening has a rugged outline and surface, then the opening can accommodate the penetration member, but it becomes difficult to apply sealant evenly

Engineering Contradiction:
Improveaccommodation of penetration memberVSAvoidsealant application difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The sleeve is pre-fitted around the penetration member before the coupling element is installed and sealed to the wall. This preliminary action creates a smooth, controlled interface at the coupling element-wall junction, making sealant application easier and more effective compared to applying sealant directly to the rugged wall opening.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution minimizes the use of sealant, allows for maintenance without damaging the wall or tiles, and provides effective waterproofing by allowing the sleeve and coupling element to be adjusted and sealed independently, enhancing the tolerance for varying angles and depths of penetration members.

Implementation Method 1

a sleeve including a collar having a resiliently flexible portion adapted to expand to fit about the water combination

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the coupling element arranged to seal to the sleeve and the wall to which the water combination is mounted

Methodology Applied
Scientific EffectSealing:

Data Source

PatentEP2867566B1Waterproofing water combinations
Publication Date: 2019.08.21 SX FLASHINGS PTY LTD
  • EP2867566B1 patent drawingFigure 1
  • EP2867566B1 patent drawingFigure 2
  • EP2867566B1 patent drawingFigure 3

AI summary

The present invention relates generally to a system for waterproofing a wall 7 having a wall opening through which a water combination 6 extends. The system comprises a sleeve 1 including a collar 12 having a resiliently flexible portion adapted to expand to fit about the water combination 6. The waterproofing system also comprises a coupling element 3 separate from the sleeve 1. The coupling element 3 is arranged to seal to the sleeve 1 and the wall 7 or associate tiles 8 to which the water combination 6 is mounted.